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Finding the Fourth Proportional to 145,970.80, 218,883.24 and 67,017.64

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Solution

The fourth proportional to 145,970.80, 218,883.24 and 67,017.64 is: 100,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,970.80 : 218,883.24 = 67,017.64 : x
  2. Step 2: Convert to fraction form
    145,970.80/218,883.24 = 67,017.64/x
  3. Step 3: Cross multiply
    145,970.80x = 218,883.24 × 67,017.64
  4. Step 4: Simplify right side
    145,970.80x = 14,669,038,180.35
  5. Step 5: Solve for x
    x = 14,669,038,180.35/145,970.80
  6. Step 6: Final answer
    x = 100,492.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.